Microsoft ended support for Windows XP on [April 8th, 2014](https://www.microsoft.com/en-us/WindowsForBusiness/end-of-xp-support),No attempt is made to prevent installing or running the software on Windows XP, youcan still do so at your own risk but be aware that there are known instabilities and issues.Please do not report issues about Windows XP to the issue tracker.

Bitcoin Core should also work on most other Unix-like systems but is notfrequently tested on them.

Notable changes===============

miniupnp CVE-2017-8798- ----------------------------

Bundled miniupnpc was updated to 2.0.20170509. This fixes an integer signedness error(present in MiniUPnPc v1.4.20101221 through v2.0) that allows remote attackers(within the LAN) to cause a denial of service or possibly have unspecifiedother impact.

This only affects users that have explicitly enabled UPnP through the GUIsetting or through the `-upnp` option, as since the last UPnP vulnerability(in Bitcoin Core 0.10.3) it has been disabled by default.

If you use this option, it is recommended to upgrade to this version as soon aspossible.

Known Bugs==========

Since 0.14.0 the approximate transaction fee shown in Bitcoin-Qt when using coincontrol and smart fee estimation does not reflect any change in target from thesmart fee slider. It will only present an approximate fee calculated using thedefault target. The fee calculated using the correct target is still applied tothe transaction and shown in the final send confirmation dialog.

0.14.2 Change log=================

Detailed release notes follow. This overview includes changes that affectbehavior, not code moves, refactors and string updates. For convenience in locatingthe code changes and accompanying discussion, both the pull request andgit merge commit are mentioned.